In dental practice, there is often need for dental treatment of patients with hemostasis disorders. Hemostasis means the stoppage of bleeding. The causes of hemostasis disorders can be congenital bleeding disordes, acquired states as a result of systemic disorders or drug effects. In many dental procedures in patients with hemostasis disorders there is a great risk of excessive bleeding. In order to provide safe dental treatment it is essencial to recognise patients with hemostasis disorders. The data obtained from the patient's history are of great help as well as clinical examination of the patient and the values of coagulation tests. The dentist should be familiar with the pathology of hemostasis disorders as well as with dental medical procedures that need to be implemented in dental treatment to reduce the risk of bleeding and prevent possible complications. If the recommended guidelines are not followed and the local hemostasis methods are not carried out, the bleeding could be deadly. Furthermore, list of instructions about diet and oral hygiene in the postoperative period should be given to the patient. Cooperation with a hematologist and a physician who has ordered anticoagulant medication therapy is mandatory